Total initial charge: (+3e)+(+5e)+(−3e)=5e When conductors touch, charge redistributes while conserving total charge. The total charge remains 5e, so the final charges must sum to 5e. Now, checking the options: Possible answers: (b) and (c). Class 12th Science Physics NCERT ...
Category: Class 12 Physics
NCERT Solutions for Class 12 Physics updated for CBSE academic session 2021-2022.
Discussion Forum Latest Questions
Object X is negatively charged and is repelled by object Y, meaning Y must also be negatively charged. Object Z is attracted to object Y. Since Y is negative, Z could be positively charged (opposite charges attract) or neutral (neutral ...
The charge of one electron is − 1.6 × 10−¹⁹ C. The object gains 5.0 × 10¹⁸ electrons, resulting in a charge change of: q = (5.0 × 10¹⁸) × (−1.6×10⁻¹⁹) = −0.80C Net charge = 1C−0.80C= +0.20C. Correct answer: ...
The second excited state of hydrogen atom corresponds to n = 3 and as per Bohr’s model the angular momentum of electron is 3h/2pi. Class 12 Physics NCERT Sample Paper Question Session 2024-2025.
When an intrinsic semiconductor is doped with a trivalent impurity (say aluminium), an additional acceptor energy level is formed slightly above the top of the valence band. As a result energy gap is reduced to a large extent. Class 12 ...